Douglas E. Comer, Internetworking with TCP/IP, Volume 1, Fourth Edition, April 2000, Prentice Hall; ISBN 0130183806.
Jeff Doyle, Routing TCP/IP, Volume I, 1998, Cisco Press; ISBN 1578700418
W. Richard Stevens, TCP/IP Illustrated, Volume 1, January 1994, Addison-Wesley Publishing Company; ISBN 0201633469.
W. Richard Stevens and Gary R. Wright, TCP/IP Illustrated, Volume II, January 1995, Addison-Wesley Publishing Company; ISBN: 020163354X.
W. Richard Stevens, TCP/IP Illustrated, Volume III, January 1996, Addison-Wesley Publishing Company; ISBN: 0201634953.
C. Huitema, Routing in the Internet, Second Edition, 1999, Prentice Hall; ISBN 0130226475,
J. Moy, OSPF, Anatomy of an Internet Routing Protocol, 1998, Addison-Wesley Pub Co; ISBN 0201634724.
R. Perlman, Interconnections, Second Edition, 1999, Addison-Wesley Pub Co; ISBN 0201634481.
Alvaro Retana, Don Slice, and Russ White, Advanced IP Network Design, 1999, Cisco Press; ISBN 1578700973.
J. Stewart, BGP4: Inter-Domain Routing in the Internet, 1998, Addison-Wesley Pub Co; ISBN 0201379511.
18.188.40.207